The Universal Audio Astra Modulation Machine boasts powerful dual-processor architecture for the most sonically authentic classic Chorus, Vibrato, Flanger, and Tremolo effects ever available in a stompbox. From spacey studio flanger tones of the 1970’s, to gritty bucket-brigade chorus and luscious opto tube tremolo, the UAFX Astra Modulation Machine puts three iconic vintage effects at your feet, in a beautifully-crafted pedal that’s built to last decades.

The Universal Audio UAFX Astra Modulation Machine includes 3 Timeless Modulation Effects:

• Chorus Brigade: Classic ‘70s analog bucket brigade chorus with additional Vibrato mode. 
• Flanger/DBLR: Studio flanger/doubler tones modeling legendary rack effects units.
• Trem 65: Perfectly-emulated opto tube tremolo derived from iconic blackface amps of the mid-1960’s.

It also includes some bonus effects: Free Phaser X90 and Dharma Trem 61, downloadable at registration.

Key Features:

• Flagship modulation pedal with powerful dual-processor UAFX engine
• Three timeless modulation effects, with secondary modes and settings
• Simple Live/Preset modes for instant recall of your favorite sound
• Additional downloadable effects by the world-renowned UAD algorithm team
• True or buffered bypass,* silent switching
• Classic UA analog design and craftsmanship, built to last decades
• Power requirements: Isolated 9VDC, center-negative, 400mA minimum**
• Inputs: 2 x ¼” TS (input 2 for stereo connections)
• Outputs: 2 x ¼” TS (output 2 for stereo connections)
• USB Type-C for updates via computer